It's Not Easy to Be a Man After Travelling to the Future (WN) - Chapter 1338: Space Concept.

Li Zifu’s bad friend Yang Dejin made a prophecy, and the two of them both traveled through time and became the cannon fodder of two villains in a novel about the heroine.
Li Zichou looked at his dazzlingly bright dragon robe: …Yang Dejin, what an open mouth!
Yang Dejin dressed as Prince Yu disguised as a man to hide his identity: Zifu, have you also time-traveled? great!
Li Zichou took a deep breath: …not very good.
The setting of the original book: when the first female ruler of Dasheng came to the throne, the heroine Bai Qingyang was forcibly named queen by her. Bearing a serious crime, she endured dormancy in the palace, secretly inciting the empress and the prince to turn against each other, and in the end the fisherman reaped the benefits and ruled the world.
One is a brutal, bloodthirsty and wanton female tyrant, and the other is an ambitious prince who disguises himself as a man.
Both died, and the two died happily.
Li Zishou and Yang Dejin agreed that they would turn the tide before their respective death dates, and neither of them was allowed to show up.
In order to survive, Li Zi paid for the army and infrastructure construction, crazily swiping the favorability of the heroine, and laying a solid foundation for the heroine to ascend the throne. It is our duty to revive the glory of Dasheng!
On the other hand, Yang Dejin kept lighting up the skill tree, went to the temple and got the kitchen, raised private soldiers while running a business, and occasionally investigated cases with Xie Zhi, the Minister of Justice.
However, the two of them at that time did not expect that the object of their solo would be reborn after committing suicide, and the other would go back in time.
Of the four, none of them were reopened.
Later…
Li Zichou frowned: Don’t you think there is something wrong with the way Xie Zhi looks at you?
Yang Dejin also frowned: Impossible! I only like girls! I think Bai Qingyang is still interested in you!
Li Zifu beat the case: Impossible! Bai Qingyang is a straight girl!
Yang Dejin also took the case: Then I’m pure lesbian too!
Bai Qingyang: .
Xie Zhi:.
The desire to survive is full of Li Zishou × rebirth heroine Bai Qingyang
Born to Love Playing the Bookboy Yang Dejin × Disguising as a Man Backtracker Xie Zhirui
Some Happy Full Crew Reopening Literature
This article is also known as “Survival of the Villain’s Cannon Fodder”, “The History of the Dasheng Palace”, “The Package of Things About My Transmigration/Rebirth/Retrospect”
—————Manual dividing line—————
VERY IMPORTANT VIEWING GUIDE:
1. The background is empty, and the dynasty cannot be tested
2. There are too many private settings, some refer to Wikipedia
3. The writing style is limited, so you can leave it at will
4. The plot is the main focus, and the emotion is the supplement
5. Qingshui Wen, who tells stories seriously
6. In terms of personal pronouns, when other characters face a character who conceals their gender, the insider uses “she” and the uninformed uses “he”, including dialogue and psychological activities. (Cold knowledge: “he” can be used to refer generally)

- Description from novelbuddy

“What the fuck? What is going on? Have I completely lost it?”

As I stare panicky at the dot unable to decide what to do, the white dot disappears and a line of text appears in its place.

[Installing files. 1% done…]

As I watch the text in shock, the percentage gradually increases. […2%...3%...4%...]

I move to the living room in a zombie-like manner, too shocked to think clearly and lie down on the couch.

“Something is wrong with me; I think I finally lost my sanity…”

[…12%...13%...14%...]

Unable to affect the situation in the least, I stare dejectedly at the percentage increase, while my mind starts exploring the possible explanations. In the end, as the percentage hits 90%, I narrow it down to three possibilities.

The first possibility is that I am in fact still unconscious and this is all a product of my mind. I pinch myself and whimper at the pain, as in my nervousness I used almost all my strength.

Nope, the first is out.

The second possibility is that I have completely lost my mind and am suffering from delusions. Hmm, I cannot exclude this, but while possible, I don’t think that this is it. The only thing out of the ordinary is that fucking line of text.

The third possibility …

[Installation successful!]

The text disappears and a new message appears in my eyes…

The third possibility … is that I gained a system. I read the message with my mouth agape at the implications.

[Welcome user, to the Perverted Daddy System!]

Fuck…

Reborn and returning, he possesses medical skills, can practice immortality, has a slave who is the king of killers, and a maid who is the school beauty pursued by everyone. Even casually taking out a piece of trash can shock the world. His return has set this world ablaze.

In the Heart’s Kingdom, a kingdom where vampires reign and humans were nothing but livestock, Lilou, a peasant, found herself being preyed upon by the worst maniacal vampire of his kind. However, as terrifying as what he addressed her as his ‘reserved meal’, this vampire also called her his bride!

Except:

My eyes brood with fear, gazing at the still-beating heart in his hand. “My Lord, pardon me but… is this the bloody proof you promised to show me?” I asked, my voice shook as I gulped down whilst struggling my trembling knees from giving away.

“Mhm… do you now believe I’m good at capturing hearts?” The silver-haired man, bearing those menacing pair of deep crimson eyes stared proudly at me after a nod. I gasped when he clenched his hand and squeezed the fresh heart to smithereen.

“Yes, milord. You’re good at it, literally.” I’m mortified, watching the pieces of the heart fall as he approached. His every step made me take a step back until my back reached a solid pillar.

“Huh,” Samael chuckled briefly, stopping in front of me. His long, pointy nails that were covered with blood traced my elbow down to my hand. Gently, he clipped my forefinger in between his, guiding it before his lips. “Did I pass your test, though?” He asked, the sharp tip of his nail played over the tip of my finger.

I stared at his penetrating gaze as I reluctantly answered, “Barely.”

He smirked, nodding in satisfaction before he pressed his nail on the tip of my forefinger that was quick to produce a drop of blood. “Such sweet aroma.” He whispered, placing my bleeding finger in his mouth and licked it with passion.

His menacing gaze never left mine as he consumed a bit of my blood. “Does that mean you’re accepting my invitation?” Keeping my finger in between his fangs, Samael inquired.

I bit my lower lip unconsciously, my heart within my chest drummed as my back broke into sweats. “But… I’m just…” I paused, hoping my answer would put an end to this. “… I’m just a human.”

Samael clicked his tongue, displeased at my response as he let my finger go. “No,” He whispered.

My entire body stiffened when he bent over, caressing my shoulder up to my neck by the apex of his nose, as his hot breaths prickled my skin.

“You're not just a mere human... you are my human.” He stressed before I sensed his lips part and the tip of his fangs against my skin.